In the USA, optometrists also acquire a 4-year bachelor degree followed by 4 years of Optometry school to earn an OD or Doctor of Optometry degree. While in school, optometry students undergo internship training and after completion of the degree, have options of 1- to 2-year residency programs for further specialization.
Ophthalmologists may refer patients to optometrists Irvine Optometrist for contact lenses or for optical aids or crouched vision rehabilitation whilst continuing to treat the underlying disease/condition that may have reduced vision. Similarly, complicated and emergency eye conditions are referred from Optometry to Ophthalmology.